 | | Journal (article/letter/editorial) | | THF,Postmasburg manganese field,situated in the Northern replacement of the countryrockbymanganeseCapeProvince...in twodistinctbeltsof deposits, the so-called Western Trnter et al., 1938; De Villiers, 1960; Boardman...In contrast Schneiderh6hn (1931)suggested in the south(Fig. 1). Miningof the manganese orescom- Borchert...ng AnalyticalTechniques the centralpartof the Gamagara ridge.Siliceous oresoccur in the Easternbelt alongthe...southernextremitiesof the Gamagara manganese oresamples, covering all macroscopically distinct ridge (Fig. 1; Hall |  | | Journal (article/letter/editorial) | | manganese ores of the Postmasburg manganese field, South Africa J. GUTZMERAND N. J. BEUKES Department of Geology...University, P.O. Box 524, Auckland Park, 2006, South Africa Abstract The diagenetic to very low-grade metamorphic...Transvaal Supergroup, manganese ore, Postmasburg, South Africa. Introduction TIlE manganese ores of the Postmasburg...ferruginous ores of the Westem Belt and siliceous ores of the Eastern Belt (Fig. 1B). Ferruginous ores form...late 1980s at Bishop, Lohatlha and Gloucester in the central part of the Western Belt (Fig. 1B). Siliceous |  | | Journal (article/letter/editorial) | | of the Transvaal Supergroup, Griqualand West, South Africa HUBERT WIGGERING FB 9 Geologic, Universittit...University, P.O. Box 524, 2000 Johannesburg (South Africa) (Received February 12, 1989; accepted June...of the Transvaal Supergroup, Griqualand West, South Africa. Precambrian Res., 46: 241-258. A 4-m-thick...km northwest of Hotazel in Griqualand West, South Africa. The paleo-alteration profile is developed on...(Fig. 1A). It is al- TRANSVAAL SUPERGROUP, SOUTH AFRICA most invariably characterized by oxidation |  | | Book | | 2. Model Test Area: Moanda Deposit, Gabon, West Africa 2.2.2.1. Introduction 20 20 23 23 23 25 25 27...Postmasburg Region, Griqualand West, Cape Province, South Africa 3.3.1. Geological Setting 3.3.2. Genesis...3.3.2.2. The Main Manganese Deposits: Bishop, Lohatlha, Glosam, and Kapstewel, Postmasburg Region, Griqualand...Manganese Ore Formation Manganese Ore Deposits of North Africa: Imini, Morocco 3.4.1. Geological Setting 3.4.2...of the Western Ukraine 3.5.2. Zone of Oxidation and Karst Ore Accumulation of the Enisei Ridge Mn Deposits |  | | Book (edition) | | OF OF SOUTH AFRICA MINES GEOLOGICAL SURVEY MINERAL RESOURCES OF REPUBLIC OF THE SOUTH AFRICA...Second World War, and partly as a result of it, South Africa experienced vast industrial expansion. This...official ‘handbook on the mineral resources of South Africa, it has become necessary to revise, or rather...reason of the great diversity and magnitude of South African mineral deposits and local mining operations...Chamber of Mines of South Africa with Mr G. H. Grange as co-ordinator, and the South, African mining industry; |  | | Report (volume) | | Mineral Foundation 63 Conyngham Street Glenside South Australia 5065 Australia (Orders: Tel. (08) 379-0444...Mineralogy and geochemistry of Archaean greenstone belt-hosted Mn formations and deposits of the Dharwar...Penganga Group of the Pranhita-Godavari valley, South India NICHOLSON, K., NAYAK, V. K. & NANDA, J. K...nodules with particular reference to the tropical South Pacific VON STACKELBERG, W. Growth history of manganese...Mn-oxide mineralization of Kato Nevrokopi, Macedonia, northern Greece: controls on formation of the Mn 4+ oxides |
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